ANÁLISE NUMÉRICA DO COMPORTAMENTO NÃO LINEAR ESTÁTICO E DINÂMICO DE CASCAS CONOIDAIS
DOI:
https://doi.org/10.26512/ripe.v2i22.20866Keywords:
Casca conoidal. Superfícies regradas. Trajetórias de equilíbrio. Frequência natural.Abstract
Cascas conoidais são estruturas descritas por superficies regradas e frequentemente utilizadas na engenharia civil devido a sua estética e eficiente arranjo estrutural. Neste trabalho analisa-se o comportamento linear e não linear, estático e dinâmico de uma casca conoidal, usando o programa commercial de elementos finitos ABAQUS®. Para isso, considera-se uma casca conoidal engastada em suas bordas retas e livre nas bordas curvas, constituída de material elástico, linear e isotrópico. Uma análise paramétrica detalhada é realizada para mostrar a influência da geometria da casca nas cargas limites, frequências naturais e, em especial, no comportamento não linear das trajetórias de equilíbrio.
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